AVS 61st International Symposium & Exhibition
    In-Situ Spectroscopy and Microscopy Focus Topic Wednesday Sessions
       Session IS+AS+MC+SS-WeM

Invited Paper IS+AS+MC+SS-WeM5
Monitoring Catalysts during Catalytic Reactions with In Situ Raman Spectroscopy

Wednesday, November 12, 2014, 9:20 am, Room 313

Session: In-Situ X-ray Absorption and Raman Spectroscopy
Presenter: Israel Wachs, Lehigh University
Correspondent: Click to Email
The surfaces of heterogeneous catalysts in reactive environments are dynamic and require in situ characterization studies under reaction conditions to fully understand their fundamental structure-activity relationships. This presentation will focus on the application of Raman spectroscopy to determine the nature of the catalytic active sites in different reaction environments. Emphasis will be placed on investigating heterogeneous supported metal oxide catalysts containing multiple catalytic active sites and determining the roles of each of the sites. Some of the examples to be presented will be the metathesis of H2C=CHCH3 to H2C=CH2 and H3C-CH=CHCH3 by supported ReOx/Al2O3 catalysts, polymerization of H2C=CH2 by supported CrOx/SiO2 and methane conversion to aromatic liquids by supported MoOx/ZSM-5 catalysts.